Ok, but departs app not necessary. – LinkedIn Groups Review

While the app seems to work fine, I'm not sure what the value is in separating "Groups" out from the main LinkedIn app. If Groups and Companies were combined in an app, allowing you to manage Company pages you are an admin of, that would be very useful. Unless I am misusing something, there does not seem to be a way to post to Company pages via mobile.
Review by App less than desirable on LinkedIn Groups.